F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F01 MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
F01D NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
5/00 Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
F01D5/14 Form or construction
F01D5/20 Specially-shaped blade tips to seal space between tips and stator